KA5PIU
02-12-2011, 03:57 AM
Hello.
Now that it is all over I can explain the rest of the story.
Old teletypewriter circuits, much like other telegraph circuits, were multiplexed.
http://www.navy-radio.com/rtty.htm
NO! older!
http://en.wikipedia.org/wiki/Telegraphy
The very old system was a mechanical commutator.
Germany took this basic idea and ran with it.
http://en.wikipedia.org/wiki/Enigma_machine
Neat idea, right?
Now, take that basic idea and have each single "answer", each light bulb trigger a master oscillator.
have groups of 5 trigger 5 master oscillators, the reason being that the actual frequency of the transmitter is limited on HF without retuning.
The transmitter does retune, but in increments.
The AN/GRC-9 was one of the first radios to have this option added.
5 possible frequencies per group, dozens of groups.
As the traffic is sent the rotors advance and change the groups, and retune the radio.
The AN/GRC-9 is a bit of history, like the teletype machine it was connected to.
But, there is no reason you have to use a TTY machine, you can dumb it down to a mark and space of the FSK mode, a simple paddle will do.
Enter the modern era of radio.
Radios can autotune an antenna tuner, simple serial data.
Now, an IBM PC or clone can provide the serial data needed to retune the radio, the frequency information as well as provide the needed output for the transmitter.
The "TTY machine" as well as the encryption device is now an inexpensive laptop.
Modern radios and tuners can jump in frequency in very short order.
The limiting factor is the MUF and the bandwidth of the antenna.
But this is true spread spectrum operation and a pretty good level of encryption.
Trying to detect this, leave alone actually receive a usable signal, is not an option for the average ham.
The FT-8x7 series of radios are by far the best radio for this, the way they are set up, the speed of retuning, the very portable nature, the interface, all lead to it being a natural.
And, the other device can be nearly any laptop.
Think about this, the press have been reporting that "Morse code" was being used, and several dozen members of the press have stated that they are aware of this, yet the Jewish hams have been saying that this is not true.
The reporters are not wrong, what they have been seeing is correct, and trust me, the media asks a lot of questions, including proof by way of actual messages.
Remember, it is their reputation that is on the line, so they want as complete a story as they can get, and backing of their editors.
Think an Arab wants to avoid the Jews? :mrgreen:
My proof of this is on Amateur Radio Newsline.
Now that it is all over I can explain the rest of the story.
Old teletypewriter circuits, much like other telegraph circuits, were multiplexed.
http://www.navy-radio.com/rtty.htm
NO! older!
http://en.wikipedia.org/wiki/Telegraphy
The very old system was a mechanical commutator.
Germany took this basic idea and ran with it.
http://en.wikipedia.org/wiki/Enigma_machine
Neat idea, right?
Now, take that basic idea and have each single "answer", each light bulb trigger a master oscillator.
have groups of 5 trigger 5 master oscillators, the reason being that the actual frequency of the transmitter is limited on HF without retuning.
The transmitter does retune, but in increments.
The AN/GRC-9 was one of the first radios to have this option added.
5 possible frequencies per group, dozens of groups.
As the traffic is sent the rotors advance and change the groups, and retune the radio.
The AN/GRC-9 is a bit of history, like the teletype machine it was connected to.
But, there is no reason you have to use a TTY machine, you can dumb it down to a mark and space of the FSK mode, a simple paddle will do.
Enter the modern era of radio.
Radios can autotune an antenna tuner, simple serial data.
Now, an IBM PC or clone can provide the serial data needed to retune the radio, the frequency information as well as provide the needed output for the transmitter.
The "TTY machine" as well as the encryption device is now an inexpensive laptop.
Modern radios and tuners can jump in frequency in very short order.
The limiting factor is the MUF and the bandwidth of the antenna.
But this is true spread spectrum operation and a pretty good level of encryption.
Trying to detect this, leave alone actually receive a usable signal, is not an option for the average ham.
The FT-8x7 series of radios are by far the best radio for this, the way they are set up, the speed of retuning, the very portable nature, the interface, all lead to it being a natural.
And, the other device can be nearly any laptop.
Think about this, the press have been reporting that "Morse code" was being used, and several dozen members of the press have stated that they are aware of this, yet the Jewish hams have been saying that this is not true.
The reporters are not wrong, what they have been seeing is correct, and trust me, the media asks a lot of questions, including proof by way of actual messages.
Remember, it is their reputation that is on the line, so they want as complete a story as they can get, and backing of their editors.
Think an Arab wants to avoid the Jews? :mrgreen:
My proof of this is on Amateur Radio Newsline.